For the first time since the pandemic, growth is forecast across every core practice area in the UK legal services market. IRN Legal Reports estimates the market will reach £59bn in 2026, representing 6.8% growth, with average annual expansion of 5.5% projected through to 2029.
At the top end of the market, financial performance has been even stronger. Latham & Watkins surpassed $1bn in London revenue in FY25, while White & Case reported global revenue growth of 8.5% to $3.6bn, with London revenue increasing 5% to approximately $584m.
The temptation is to interpret these numbers as a simple return to form. In our view, they point to something more structural: a market expanding in value while consolidating in shape, with growth increasingly concentrated around a smaller group of firms, practices, and partners.
For private practice leaders and senior candidates, the question is no longer whether the market is moving. It is where it is moving, how quickly, and which platforms are best positioned to convert that movement into long-term advantage.
Private equity is now the centre of gravity
Three data points capture the scale of the shift. First, around 31% of all UK law firm M&A activity in the past year involved either new private equity investment or PE-backed firms, up from 25% in 2024 and 20% in 2023. Second, London recorded 50 lateral private equity partner hires in 2025, almost double the 28 recorded the year before, and the highest figure in the tracking period. Third, London recorded 48 lateral PE M&A partner moves in 2025 against 37 in New York – a reversal of the position four years ago.
This is not a marginal trend. It is a redrawing of the City’s profit map.
Real estate PE, infrastructure, and credit are now standalone hiring priorities rather than adjacencies to mainstream M&A. At the same time, the senior PE talent pool in London remains genuinely thin, which is why firms are increasingly pursuing group-level hires and team builds instead of isolated laterals.
UK-headquartered firms finally turn the tables
For much of the last decade, the narrative has been relatively straightforward: US firms entered the London market aggressively, hired aggressively, and outpaced domestic competitors at the top of the deal table.
That dynamic still exists at the elite end of the market, but the talent flow now looks more balanced.
UK-headquartered firms achieved net positive growth in London PE partner numbers for the first time in years while the AmLaw 50 recorded zero net growth across the year.
Compensation realignment has also played a role, with several Magic Circle and elite international firms now paying around £150,000 at NQ level, while partner-level compensation packages continue to escalate across strategic practice areas.
The more interesting question now is whether UK firms can convert this into a longer-term structural advantage, or whether it represents a temporary correction before US firms reassert themselves.
The firms making the strongest progress are typically those treating compensation as the entry point rather than the differentiator, competing instead on platform strength, autonomy, strategic direction, and route to equity.
Consolidation and the emergence of a barbell market
The structural shape of the market is changing in parallel.
The number of law firms in England and Wales has fallen below 9,000, with more than 1,100 firms exiting between December 2020 and December 2025.
At the other end of the market, international integration continues to accelerate, with firms pursuing larger combinations, transatlantic expansion, and broader international capability.
The result is a market increasingly resembling a barbell structure: global firms with extensive infrastructure and international reach at one end, specialist boutiques at the other, and a squeezed middle caught between the two.
For senior candidates evaluating a move, this matters materially. The platform a partner joins today increasingly shapes the client base, cross-border capability, and growth opportunities available over the next decade.
AI and operational infrastructure are becoming competitive advantages
Operational maturity is becoming more commercially important across private practice.
Alongside rising regulatory pressure, firms are now having to build more sophisticated internal infrastructure around risk, compliance, learning, governance, and AI adoption.
The strategic question is no longer whether firms should adopt AI. It is how they implement it responsibly and at scale.
That operational capability is increasingly influencing hiring outcomes. Firms with credible infrastructure, coherent governance, and clear strategic direction are becoming more attractive destinations for senior laterals, particularly within high-volume and process-heavy practice areas.
What this means for hiring strategy
Hiring is becoming more selective and more execution-focused. Firms are prioritising partners capable of delivering immediate impact, with portable practices, clear client overlap, and strong commercial alignment.
Team-led hiring strategies are accelerating across private equity, funds, infrastructure, and real estate PE because the senior talent pool is too constrained to rebuild practices one hire at a time.
Most notably, platform fit is now deciding deals. Compensation has converged sufficiently that factors such as equity route, leadership stability, governance, AI capability, and international reach are increasingly determining where senior candidates choose to move.
The UK legal market in 2026 is more dynamic than it has been since 2021, but it is not uniformly buoyant. Growth is concentrated, consolidation is accelerating, and the gap between firms with credible strategic platforms and those without is widening.
For firms looking to grow, this remains a market that rewards decisiveness rather than reactive hiring.
